Double-order viscous damper with self-testing function
By setting processing grooves and oil inlet and outlet ports in the damper and combining with the pressure gauge, the self-test function of the double-order viscous damper is realized, which solves the problem of silicone oil deterioration and factory replacement after earthquakes, ensuring the normal operation of the equipment and self-testing capabilities.
Patent Information
- Application Number
- CN202421259969.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-06-04
AI Technical Summary
After an earthquake occurs, the silicone oil may deteriorate, causing it to be recycled and the lack of self-test function to detect problems.
Design a double-order viscous damper with self-test function. By setting processing grooves in the oil cylinder, the difference in the medium flow rate during the piston moves will generate first-order and second-order damping forces, and be installed at both ends of the oil cylinder. The oil port and oil outlet are used to replace the deformed medium and self-tested in combination with a pressure gauge.
It effectively avoids the trouble of returning to the factory to replace the new product caused by deterioration of silicone oil after earthquakes, and realizes the self-testing function of the damper through the pressure gauge to ensure that the pressurization number is consistent with the pressure gauge value when installing the medium, and ensures that the equipment is operating normally.
Smart Images
Figure CN222334365U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of civil engineering structures, and in particular to a double-order viscous damper with a self-testing function. Background Art
[0002] Building dampers are safety devices installed on buildings to reduce earthquake damage. They are widely used in civil buildings, industrial buildings, bridges, etc. When an earthquake occurs, the dampers absorb and consume the impact energy of the earthquake on the building structure to the maximum extent, greatly alleviating the impact and damage of the earthquake on the building structure.
[0003] However, existing building dampers still have many defects. For example, after an earthquake (especially with multiple aftershocks), the silicone oil in the existing dampers may deteriorate, and the damping fluid must be returned to the factory for replacement in order to meet the design requirements of the dampers.
[0004] Therefore, the above-mentioned technical problems need to be further solved. Utility Model Content
[0005] The purpose of the embodiment of the present application is to provide a two-stage viscous damper with a self-test function, which can effectively solve the problems of silicone oil deterioration after earthquake damage and the trouble of returning the damper to the factory for replacement of silicone oil. At the same time, a pressure gauge is installed on the basis of the original damper to realize the self-test function.
[0006] In order to solve the above technical problems, the embodiments of the present application provide the following technical solutions:
[0007] The present application provides a two-stage viscous damper with a self-test function, comprising: a bushing, a piston, a cylinder, a piston rod, a damping structure, a pin head, an extension tube, an oil inlet, an oil outlet and a pressure gauge; the two ends of the cylinder are respectively connected to the bushings, a processing groove is provided at the center of the cylinder, the cylinder is provided with the piston and the damping structure, the piston rod passes through the bushing and is inserted into the cylinder and connected to the piston, one end of the piston rod is connected to the pin head, and the other end of the piston rod is connected to the extension tube, the upper end and the lower end of the cylinder are respectively provided with an oil inlet and an oil outlet, and a pressure gauge is installed between the oil inlet and the oil outlet and the cylinder;
[0008] Wherein, the cross section of the groove processed in the oil cylinder is larger than the cross section at both ends of the oil cylinder.
[0009] Preferably, in the aforementioned two-stage viscous damper with self-test function, the piston rod is connected to the center position of the damper.
[0010] Preferably, in the aforementioned two-stage viscous damper with self-test function, the bushing seal is embedded in both ends of the oil cylinder.
[0011] Preferably, in the aforementioned two-stage viscous damper with self-test function, the machined groove is arranged at the middle position of the oil cylinder.
[0012] Compared with the prior art, the double-stage viscous damper with a self-test function provided by the present application has a machining groove in the oil cylinder of the damper to achieve a variable cross-section. The cross-section of the machining groove is larger than the cross-section at both ends of the oil cylinder. When the piston moves in the machining groove, the flow rate of the medium that can pass through is larger; when the piston moves to both ends, the flow rate of the medium that can pass through is smaller. Due to the difference in flow rate, the damper finally achieves first-order and second-order damping forces, thereby realizing a double-section viscous damper.
[0013] There are oil inlets and outlets at the upper and lower ends of the oil cylinder. After an earthquake (especially multiple aftershocks), the medium in the damper may deteriorate. Simply open the oil outlet to release the medium inside the damper and add new medium to the oil inlet to avoid the trouble of returning to the factory to replace silicone oil.
[0014] Install a pressure gauge. When the damper is loaded with medium, the damper is pressurized. If the pressurized value is inconsistent with the value on the pressure gauge, it proves that there is a problem with the damper, realizing the self-test function. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present application will become easy to understand. In the accompanying drawings, several embodiments of the present application are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:
[0016] Figure 1 The structural diagram of a double-order viscous damper with a self-test function is schematically shown.
[0017] Description of Figure Numbers:
[0018] 1 is a bushing; 2 is a piston; 3 is a cylinder; 31 is a processing groove; 4 is a piston rod; 5 is a damping structure; 6 is a pin head; 7 is an extension pipe; 8 is an oil inlet; 9 is an oil outlet; 10 is a pressure gauge. DETAILED DESCRIPTION
[0019] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0020] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which this application belongs. Example
[0021] The present embodiment provides a two-stage viscous damper with a self-test function, comprising: a bushing 1, a piston 2, a cylinder 3, a piston rod 4, a damping structure 5, a pin head 6, an extension pipe 7, an oil inlet 8, an oil outlet 9 and a pressure gauge 10; the two ends of the cylinder 3 are respectively connected with bushings 1, and the bushings 1 are sealed and embedded in the two ends of the cylinder 3, and a processing groove 31 is arranged in the middle position of the cylinder 3 to realize a variable cross-section. The cross-section of the processing groove 31 in the cylinder 3 is larger than the cross-sections at the two ends of the cylinder 3. When the piston 2 moves in the processing groove 31, the flow rate of the medium that can pass through is large; when the piston 2 moves to the two ends, the flow rate of the medium that can pass through is small. Due to the difference in flow rate, the damper finally realizes the first-order and second-order damping forces. , realizing a double-section viscous damper; a piston 2 and a damping structure 5 are provided in the oil cylinder 3, the piston rod 4 first passes through the bushing 1 near the pin head 6 and is inserted into the oil cylinder 3 and then passes through the bushing 1 near the long pipe 7, the piston rod 4 is connected to the piston 2, one end of the piston rod 4 is connected to the pin head 6, and the other end of the piston rod 4 is connected to the extension pipe 7, the upper end and the lower end of the oil cylinder 3 are respectively penetrated with an oil inlet 8 and an oil outlet 9, and a pressure gauge 10 is installed between the oil inlet 8 and the oil outlet 9 and the oil cylinder 3, the pressure gauge 10 between the oil outlet 9 and the oil cylinder 3 and the pressure gauge 10 between the oil inlet 8 and the oil cylinder 3 can be the same or different, depending on the working conditions; wherein, the piston rod is located in the middle core position of the damper.
[0022] Specifically, the piston 2 is connected to the piston rod 4 to divide the damping structure into two cavities, and the cavities are filled with damping fluid, which may be silicone oil or the like.
[0023] Specifically, the bushing 1, the damping structure 5, the piston 2, the oil cylinder 3 and the piston rod 4 can all be made of high-strength stainless steel.
[0024] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.
Claims
1. A two-stage viscous damper with a self-test function, characterized in that: include: Bushing, piston, oil cylinder, piston rod, damping structure, pin head, extension tube, oil inlet, oil outlet and pressure gauge; the two ends of the oil cylinder are respectively connected with the bushing, the oil cylinder is provided with a processing groove, the oil cylinder is provided with the piston and the damping structure, the piston rod passes through the bushing and is inserted into the oil cylinder and connected with the piston, one end of the piston rod is connected with the pin head, and the other end of the piston rod is connected with the extension tube, the upper end and the lower end of the oil cylinder are respectively provided with an oil inlet and an oil outlet, and a pressure gauge is installed between the oil inlet and the oil outlet and the oil cylinder; Wherein, the cross section of the groove processed in the oil cylinder is larger than the cross section at both ends of the oil cylinder.
2. The dual-stage viscous damper with self-test function as claimed in claim 1, characterized in that: The piston rod is connected to the center position of the damper.
3. The dual-stage viscous damper with self-test function as claimed in claim 1, characterized in that: The bushing seals are embedded in both ends of the oil cylinder.
4. The dual-stage viscous damper with self-test function as claimed in claim 1, characterized in that: The processing groove is arranged at the middle position of the oil cylinder.